30 years too late

NPR wonders about presidential dementia, noting that "At 70, Trump is the oldest American president to ever take office:"

Couple his age with a family history of dementia -- his father Fred developed Alzheimer's disease in his 80s -- and one could argue that the question of baseline cognitive testing for the U.S. head of state has taken on new relevance.

Arthur Caplan, a bioethicist at New York University's Langone Medical Center, comments:

"I think we're about 50 years overdue for having some sort of annual physical for the president and vice president, the results of which should be reported publicly," he says. "Part of this should be psychiatric and cognitive testing."